Evidence of this transformation is preserved in banded iron formations, where alternating layers of iron ... landscape of the Archaean Earth and envision the green color as a sign of the distinct ...

Breakthrough discovery of 123-million-year-old pollen grains in Portugal pushes back flowering plant evolution by 2 million ...

The varied colors appear when the moon is seen or photographed through stratified and irregular gas layers of Earth’s atmospheric blanket. Tiny air molecules in the layers scatter light that ...

More than half of the world’s oceans have changed significantly in color over the past 20 years ... which simulated how the Earth’s oceans would respond under two scenarios: one with added ...

Beneath the outermost crust, the mantle and the molten-liquid outer core lies the Earth’s solid metal center — which actually has a hidden layer, or an “innermost inner core” within ...

Earth’s protective ozone layer is slowly but noticeably healing at a pace that would restore the layer across much of the world by the 2040s, and would fully mend the hole over Antarctica in ...

The Earth's ozone layer is expected to recover within the next 40 years as ozone-depleting chemicals are being phased out of use, a panel of international experts backed by the U.N. says.

The color of Earth's oceans has changed significantly over the ... can be used as a gauge to assess what dwells in its upper layers. Deep blue waters, for instance, indicate an absence of life ...